H01H 33/6641
Making use of a separate coil
Official title: {making use of a separate coil}
H01H33/6641 (Making use of a separate coil) appears on 37 US grants and 12 published applications in this corpus.
Search patents in H01H- Granted patents
- 37
- Published applications
- 12
- Assignees
- 25
- Inventors
- 61
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 4 |
| 2016 | 3 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High voltage DC contactor isolation via electromechanical actuation10 Mar 2026US 12,573,570 B2Hamilton Sundstrand Corporation
- Vacuum interrupter22 Apr 2025US 12,283,444 B2Mitsubishi Electric Corporation
- Direct current breaker based on vacuum magnetic blowout transfer and breaking method thereof19 Oct 2021US 11,152,171 B2Xi' An Jiaotong University
- Vacuum interrupter and driving method therefor28 May 2019US 10,304,644 B2Hyosung Heavy Industries Corporation
- Passive resonance DC circuit breaker2 May 2017US 9,640,974 B2ABB Schweiz AG
- High voltage dc contactor isolation via electromechanical actuation3 Apr 2025US 2025/0112011 A1Hamilton Sundstrand Corporation
- Vacuum interrupter18 May 2023US 2023/0154705 A1Mitsubishi Electric Corporation
- Direct current breaker based on vacuum magnetic blowout transfer and breaking method thereof29 Oct 2020US 2020/0343062 A1Xi' An Jiaotong University
- Vacuum interrupter and driving method therefor11 Oct 2018US 2018/0294115 A1Hyosung Corporation
- Switching device5 Nov 2015US 2015/0318129 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- Hybrid medium voltage circuit breaker98US 5,155,315 AMerlin Gerin · 1992
- Hybrid circuit breaker with axial blowout coil87US 5,280,144 AMerlin Gerin · 1994
- Current interchange for vacuum capacitor switch56US 5,597,992 ACooper Industries, Inc. · 1997
- Switching device for the interruption of fault currents29US 5,206,616 ASachsenwerk Aktiengesellschaft · 1993
- Electrical switchgear apparatus comprising a vacuum cartridge and a flexible electrical connector24US 6,410,875 B1Schneider Electric Industries SAS · 2002